GCN Circular 11257
Subject
EVLA detection of radio afterglow of GRB100901A
Date
2010-09-07T21:09:26Z (14 years ago)
From
Poonam Chandra at Royal Mil. College Canada <Poonam.Chandra@rmc.ca>
Poonam Chandra (RMC) and Dale A. Frail (NRAO) report on behalf of a larger
collaboration:
"We observed GRB 100901A (Immler et al. GCN 11159) with the Expanded Very Large
Array (EVLA) on September 06.47 UT at a C band wide receiver (receiver
frequency range 4-8 GHz). We detect the radio afterglow of the GRB at the
Swift-XRT position (Osborne et al. GCN 11167) at 4.5 and 7.9 GHz frequencies.
The flux densities at 4.5 and 7.9 GHz bands are 331+/-30 uJy and
440+/-27 uJy, respectively.
The EVLA is still undergoing active commissioning and we caution that
these results should be considered preliminary. The National Radio
Astronomy Observatory is a facility of the National Science Foundation
operated under cooperative agreement by Associated Universities, Inc."